Supporting device



March 9, 1937. R. B. KNOTH 2,073,484

` SUPPORTING DEVICE Filed June 7, 1935 Patented Mar. 9, 1937 SUPPORTING DEVICE Richard B. Knoth, Chicago, Ill., assgnor to Western Electric Company, Incorporated, New York, N. Y., a corporation of New York Application June 7, 1935, Serial No. 25,408

4 Claims.

This invention relates to supporting devices, and more particularly to a mounting plate for coin collecting apparatus. The primary object of this invention is the -l'provision of an improved mounting plate for coin collecting apparatus which is of the required structural strength, economical to manufacture and durable in service.

In accordance with the above object, the invention contemplates a non-frangible mounting plate for coin collectors comprising a sheet ste-el base member formed with a continuous drawn peripheral reinforcing liange and a sheet steel reinforcing member tting within the flange and permanently attached to the base member, the reinforcing member having punched and formed up therefrom several details and mounting lugs for use in conjunction with the coin collecting apparatus associated therewith. Other objects and advantages of this invention will more fully appear from the following detailed description taken in conjunction with the accompanying drawing, wherein Fig. 1 is a front elevational View of a fabricated mounting plate for telephone coin collecting apparatus embodying the features of the invention;

Fig. 2 is a plan view of Fig. 1, and

Fig. 3 is an enlarged vertical section on the line 3 3' of Fig. 1.

Referring now to the drawing, there is disclosed a non-frangible back or mounting plate particularly designed for telephone coin collecting apparatus comprising base and inner lining 35 or reinforcing members I0 and II, respectively, formed from sheet steel. The base member lll is provided with an integral drawn reinforcing flange or rim I2 extending around its entire periphery, the flange projecting from opposite plane faces of the member. At predetermined points throughout the base member I0 circular hollow bosses I3 are embossed therein which extend rearwardly or from the back face of the member and into alinement with the rear edge 5 of the flange I2.

Fitting closely within the flange I2 of the base member I0 is the reinforcing member II which throughout the greater portion of its area abuts the inner plane face of the base member Ill.

50 Embossed also in the reinforcing member II are circular hollow bosses I4 which are centered with the bosses I3 of the base member II) and extend thereinto as clearly shown in Fig. 3 when the members IIJ and II are assembled.

55 The members I 0 and II are permanently attached or united at a plurality of points by spot welding, as indicated at I'I (Fig. 1). Before or after uniting the members, axially alined apertures I8 are perforated or drilled in the bottom walls of the bosses I3 and I4, the latter bosses 5 being countersunk, for the purpose of receiving screws for attaching the telephone coin collecting apparatus carried by the mounting plate to a supporting plate (not shown) which in turn is fixed to a vertical wall of a room or booth. At predetermined points apertures I9 (Fig. 1) are formed in the united members I0 and II which apertures are used in assembling certain parts of the telephone coin collecting apparatus. To provide an edge 20 on the flange I2 extending around the base member IIl in a single plane the edge may be subjected to a swaging operation after the drawing of the flange I2, which'operation also provides a rounded edge free of sharp corners.

The base and reinforcing members I0 and II, respectively, may be formed by suitable blanking, drawing, swaging, embossing and perforating operations from sheet steel stock of a suitable gauge in a manner well known in the metal working art. A plurality of mounting lugs or details 2I, 22 and 23 and a housing 26 are punched and formed up from the inner lining or reinforcing member Il, such details serving in the completed telephone coin collecting apparatus of which the fabricated mounting plate is a part to support and house certain details of the apparatus. At opposite ends of the mounting plate suitable notches 21 are formed by cutting out the portion of the flange or rim I2 which extends rearwardly from the mounting plate. The notches 21 provide a space for the entrance of electrical conductors, which extend in some cases from above and in other cases from below the apparatus, to the rear of the apparatus and then are passed. through an aperture 28 formed in the united members I0 and Il forming the fabricated mounting plate.

It will be apparent that the fabricated mounting plate as described above is inexpensive to manufacture since the two members thereof may be inexpensively formed by simple punch press operations and readily assembled and welded together. Also the completed article has the appearance of being of solid integral construction, and being of pressed steel has a great resistance to breakage and fracture and a high degree of strength and durability commensurate with its weight.

Although there is herein shown and described one specic embodiment of the invention, it should be understood that the invention is not limited thereto except as defined by the appended claims.

What is claimed is:

1. A mounting plate for telephone coin collectors comprising a sheet steel base member having a drawn peripheral reinforcing flange extending rst rearwardly and then substantially forwardly of the plane of the sheet, and a sheet steel plate permanently attached to the front side of the base member and within the connes of th-e flange thereof, portions of said plate being struck up to form a plurality of projections for supporting apparatus of the coin collector, the metal of the base member lying back of the openings caused by the struck up portions being undisturbed so as to form a closure preventing unauthorized entry from 'the exterior of Wires or the like through said openings.

2. A mounting place for coin collectors comprising a sheet steel base member having a drawn peripheral reinforcing flange extending first in one direction and then in a reverse direction from opposite faces thereof, a reinforcing sheet steel member permanently attached to the base member within the connes of the flange thereof at one side of and abutting the base member, and

means for attaching the mounting plate to a Wall being provided Within the confines of the flange on the other side of the base member.

3. A fabricated mounting plate for telephone coin collectors comprising a sheet steel base member having a drawn peripheral reinforcing flange extending therearound, and a sheet steel lining member closely fitting against the inner wall of the flange and abutting substantially the entire area of the base member, said members having embossed therein perforated mounting bosses, said members being spot Welded at a plurality of points for uniting the members into an integral mounting plate.

4. A fabricated sheet steel back or mounting plate for telephone coin collectors comprising a sheet steel base member having a drawn peripheral reinforcing flange extending therearound, and a reinforcing sheet steel member within the confines of the flange and abutting substantially the entire area of the base member, said reinforcing member having punched and formed up therefrom a plurality of lugs and/0r details for use in the assembled coin collector, said members being molecularly united into an integral mounting plate.

RICHARD B. KNOTH. 

